fire in the belly
(redirected from fire the belly)fire in (one's)/the belly
Passion and determination. I'm confident that Bill will get them to listen to our pitch—he has such a fire in the belly for this sort of work.
fire in the (or your) belly
a powerful sense of ambition or determination. 1991 Vanity Fair Bennett is quick to deny feeling the fire in the belly generally considered a prerequisite for tenancy at 1600 Pennsylvania Avenue.